diff --git a/src/helpers/recal-helper.js b/src/helpers/recal-helper.js
index 5ad9c390..f364bf68 100644
--- a/src/helpers/recal-helper.js
+++ b/src/helpers/recal-helper.js
@@ -78,5 +78,17 @@ export function anyPartWithRequiresRecalFlag(lineItems) {
         return false;
     }
 
-    return lineItems.some((li) => li.requiresRecalibration === true);
+    if (Array.isArray(lineItems)) {
+        return lineItems.some((li) => li.requiresRecalibration === true);
+    }
+
+    const flattened = [
+        ...(lineItems.glassParts ?? []),
+        ...(lineItems.supportingItems ?? []),
+        ...(lineItems.otherParts ?? []),
+        ...(lineItems.feeItems ?? []),
+        ...(lineItems.vaps ?? []),
+    ];
+
+    return flattened.some((li) => li.requiresRecalibration === true);
 }